How to Restore Default Settings on Oppo F9 Smart Phone

If your Oppo F9 smart phone is not responsive, you can restore back to its default settings by following the following stems. 

1. On your home screen, Tap Settings.
2.  Tap SIM card & Mobile.
3. Tap SIM (on which service is enabled).
4. Tap Access Point name.
5.  Tap Reset.
6. Tap Reset access point.
7.  Now settings are saved.

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